He married Elizabeth, the daughter of Christian pastor and author Martyn Lloyd-Jones with whom he had two sons and a daughter. Their son Christopher Catherwood is an author. Their daughter, Bethan Marshall is a university lecturer and youngest son, Jonathan is Director of the Martyn Lloyd Jones Trust. An outstanding public servant Catherwood was committed to economic co-operation within the European community. He died in Cambridge, England on 30 November 2014 at the age of 89.[1][2][3]